1140121015 has 16 divisors (see below), whose sum is σ = 1517823360. Its totient is φ = 815122720.

The previous prime is 1140121013. The next prime is 1140121033. The reversal of 1140121015 is 5101210411.

It is not a de Polignac number, because 1140121015 - 2¹ = 1140121013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1140121015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140121013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172429 + ... + 178918.

It is an arithmetic number, because the mean of its divisors is an integer number (94863960).

Almost surely, 2^1140121015 is an apocalyptic number.

1140121015 is a deficient number, since it is larger than the sum of its proper divisors (377702345).

1140121015 is a wasteful number, since it uses less digits than its factorization.

1140121015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351422.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1140121015 is about 33765.6780621980. The cubic root of 1140121015 is about 1044.6808897205.

Adding to 1140121015 its reverse (5101210411), we get a palindrome (6241331426).

The spelling of 1140121015 in words is "one billion, one hundred forty million, one hundred twenty-one thousand, fifteen".